Individual provider Active NPI

Andrew E Werchniak, MD

  • Dermatology Physician
  • Portsmouth, NH
National Provider Identifier
1023075710
Registry record updated Oct 2, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Dermatology PhysicianTaxonomy code 207N00000X
License
11723 Issued in NH
Practice address
330 Borthwick Ave Ste 303
Seacoast Dermatology PLLC
Portsmouth, NH 03801-7109
Phone
(603) 431-5205
Fax
(603) 436-4257
NPI assigned
Apr 27, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 2, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Dermatology Physician 207N00000X 220406 MA
Dermatology Physician 207N00000X 11723 NH Primary

Addresses

Primary practice location

330 Borthwick Ave Ste 303
Seacoast Dermatology PLLC
Portsmouth, NH 03801-7109

Mailing address

330 Borthwick Ave Ste 303
Seacoast Dermatology PLLC
Portsmouth, NH 03801-7109
Phone (603) 431-5205

Other practice location 1

171 Pleasant St Ste 101
Concord, NH 03301-2625
Phone (603) 609-9344

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NH
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20070130000504 NH Practitioner - Dermatology 2769453745 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Dermatology
Education
University of Virginia School of Medicine, 2002
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Optima Dermatology LLCGroup PAC ID 3971561648, 74 clinicians

Practice addresses (Care Compare)

1 Hampton Rd
Suite A306
Exeter, NH 03833-4848
Phone (603) 294-4635

1 Hampton Rd
Unit 208
Exeter, NH 03833-4849
Phone (603) 431-5205

171 Pleasant St
Suite 101
Concord, NH 03301-2625
Phone (603) 609-9344

Merit-based Incentive Payment System (MIPS)

Final score
75 of 100Reported as group

Procedures performed for Medicare patients

ProcedureNumber of procedures
Removal of skin lesions2437
Removal or shaving of skin growth220
Skin biopsy114

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled
HHS exclusion list flag
Flagged The directory lists this NPI on an HHS exclusion list. The OIG exclusions file (LEIE) holds no record for this NPI, and the directory does not say which list the flag comes from. How exclusions are shown Confirm with the OIG exclusions search.
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Forefront Dermatology - New Hampshire, PLLC Dermatology CurrentSince Jun 19, 2023 Accepting new patients
Optima Dermatology LLC Dermatology CurrentSince Dec 1, 2025 Accepting new patients
Dermatology and Skin Health LLC Dermatology PastSince Oct 30, 2022 Accepting new patients
Ace Physical Therapy LLC PastSince Apr 7, 2008 Accepting new patients

Locations

171 Pleasant St
Ste 101
Concord, NH 03301
Phone (603) 228-7500

750 Central Ave
Ste O
Dover, NH 03820
Phone (603) 431-5205

1 Hampton Rd
Ste A306
Exeter, NH 03833
Phone (603) 294-4635

1 Hampton Rd
Unit 208
Exeter, NH 03833
Phone (603) 431-5205

330 Borthwick Ave
Ste 303
Portsmouth, NH 03801
Phone (603) 431-5205

278 Lafayette Rd
Bldg E
Portsmouth, NH 03801
Phone (603) 430-9644

987 Boardman Canfield Rd
Youngstown, OH 44512
Phone (330) 271-8589

Interoperability endpoints

  • Direct secure messaging: andrew.werchniak@forefrontdermatology.emadirect.md

Organizations & group practices 4

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1146096000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759363200000",
    "number": "1023075710",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "330 BORTHWICK AVE STE 303",
            "address_2": "SEACOAST DERMATOLOGY PLLC",
            "city": "PORTSMOUTH",
            "state": "NH",
            "postal_code": "038017109",
            "telephone_number": "603-431-5205",
            "fax_number": "603-436-4257"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "330 BORTHWICK AVE STE 303",
            "address_2": "SEACOAST DERMATOLOGY PLLC",
            "city": "PORTSMOUTH",
            "state": "NH",
            "postal_code": "038017109",
            "telephone_number": "603-431-5205",
            "fax_number": "603-436-4257"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "171 Pleasant St Ste 101",
            "address_purpose": "LOCATION",
            "city": "Concord",
            "state": "NH",
            "postal_code": "033012625",
            "country_code": "US",
            "telephone_number": "603-609-9344",
            "fax_number": "603-836-0147",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WERCHNIAK",
        "first_name": "ANDREW",
        "middle_name": "E",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-04-27",
        "last_updated": "2025-10-02",
        "certification_date": "2025-10-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207N00000X",
            "taxonomy_group": "",
            "desc": "Dermatology",
            "state": "MA",
            "license": "220406",
            "primary": false
        },
        {
            "code": "207N00000X",
            "taxonomy_group": "",
            "desc": "Dermatology",
            "state": "NH",
            "license": "11723",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Portsmouth, NH

Sources for this page

Verify at the official NPI Registry.